Study of the Energy Characteristics of Metallized Mixed Compositions Based on a Binary Oxidizer at Increased Pressures

Abstract

Results of a thermodynamic calculation of the energy characteristics for mixed compositions containing aluminum powder are presented. The influence of the aluminum content in the mixed compositions on the adiabatic combustion temperature, specific impulse, and composition of the combustion products is considered. Results of an experimental study of combustion of metallized mixed compositions in the pressure range from 0.1 to 6 MPa are presented. The effect of the aluminum powder dispersity and the relative content of the components of the mixed composition on the pressure dependence of the burning rate is demonstrated.

Effect of organic coatings of nanoaluminum on the burning rate of mixed compositions

“…As far as metal powders are concerned, aluminum is of greatest interest as a consequence of the low melting temperature of pure aluminum and its oxide (in comparison with magnesium, zirconium, and beryllium), its availability, acceptable cost, and high heat release when burned with oxygen [1]. In [2][3][4][5][6] it was shown that the introduction of aluminum nanopowder (nAl) into the makeup of solid MC makes it possible to significantly increase the burning rate, decrease the ignition delay time, increase the completeness of aluminum combustion, and decrease the loss of specific impulse.…”